Splined Bolts | McMaster-Carr

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External 12-Point

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Tamper-Resistant Torx Plus

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Stainless Steel

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Corrosion-Resistant Coated

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Stainless Steel

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Less than 70,000 psi

70,000 psi to 99,999 psi

100,000 psi to 119,999 psi

120,000 psi to 139,999 psi

140,000 psi or greater

DFARS Specialty Metals

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2,670 Products

Fastening and Joining

12-Point Screws

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Elevator Bolts

Create a flush joint to allow movement in tight spaces such as grain elevators and belting systems

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Wood Screws

Fasten material to wood or pieces of wood to each other

Power Transmission

Ball Screw/Splines

Ball Screw/Splines

Transmit rotary power, move loads along the shaft, or do both at once

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)